Eyeleting-machine



Uhil'li'i .STA'ES rArENr OFFICE.

SYLVESTER L. GOOKIN,

MACHINERY CORPORATIQN, NEW JERSEY.

EYELETING-MAGHINE.

Specicaton of Letters Patent.

Patented Feb. 15, 1921.

Application filed May 21, 1918. Serial No. 235,828.

To all whom t may concern:

15e it known that I, SYLvnsTnR L. Groomer, a citizen of the United States, residing at Boston, in the county of Suffolk and Sbtate of Massachusetts, have invented certain lmprovements in Eyeleting-Machines, of which the 'following description, in connection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several ligures.

This invention relates to eyeleting machines and more particularly to the eyelet presenting and setting mechanisms of such machines.

One method of setting blind or invisible eyelets involves the use of an expansible die or set of the type illustrated in United States Letters Patent No. 1,271,7 20, granted July 9, 1918, on an application of H. Kenwayn? The sections of such a set are provided with a shoulder upon one side of which is an upsetting surface and in use the shoulder is located between the layers 'of a piece of work such, for example, as the upper of a shoe, so that the eyelet is clenched over only a part of the layers of the work. A die or set of the type above outlined is frequently used as the spindle of the eyelet presenting set and in such cases it is arranged to thread the endmost eyelet in the supplying raceway to remove the eyelet from the raceway and to guide the eyelet to the companion setting tool. lt will be understood that in such an arrangement the spindle must necessarily be of a size to pass through the barrel of the eyelet and consequently its sections are very delicate and are liable to be broken in case the expansible set or spindle encounters an improperly pos1 tioned eyelet or an eyelet whose barrel is clogged or imperfectly formed.

n important object of the invention is to provide an improved expansible set in which the liability of breakage shall be minimized.

A. feature of the invention consists in an expansible set in which the relatively movable, normally contracted sections are interconnected at both ends. l

Machines employing expansible sets have commonly been provided with means for expanding said sets arranged externally of the sets. In United States Letters Patent No. 1,297,695, granted March 18, 1919, on

an application of Ralph F. Knight, there is illustrated an expansible set which is pro vided with a tubular body and with a die expanding member passing through the bore o f the body. This member is controlled by yielding means arranged to bear against the upper end of the expanding member in or der to force it into the die and by other yielding means arranged below the end of the die expanding member for forcing it out of the die. Such an arrangement, however, sometimes involves diiiiculties becausel of its lack of positive control.

Another feature of the present invention consists in arranging the die expanding member of the expansible set so that it shall be positively controlled. In the illustrated construction, the eyelet presenting set, the expansible set, and the die expanding member are initially located on one side of the work and they are all arranged to be controlled from this side.

These and other features will be more fully described in the following specification taken in connection with the accompanying drawing, in which,`

Figure 1 is an angular view of the front end of an eyeleting machine embodying the present invention;

Fig. 2 is a vertical section through the eyelet setting mechanisms; and

Fig. 3 is an enlarged view of the expanding set and its associated expanding member.

The present invention may be applied to various types of machines but the construction and arrangement of the parts not herein illustrated may well be similar to the construction of the corresponding parts of the machiney illustrated in Letters Patent of the United States No. 603,023, granted April 26, 1898, upon an application of Seymour Field, to which reference may be had for further description of the parts not herein shown. Such a machine embodies a work supporting table 10 upon which the work is held in place by means of a suitable presser foot 12. Above this table is arranged a punch lever 14 and a feeding lever 16 which, in the operation of the machine, are constructed and arranged to punch a hole in the vwork and then to move the work laterally by a predetermined amount to bring the punched hole into alinement with the eyelet setting mechanism. In the present arrangement, a tubular tool 18 is carriedl by and fixed to thelever 16, and the feeding linger 2O is resiliently mounted within said tool, as more fully shown in Fig. 2.

Mounted in suitable bearings for reciprocation below the work table is a plunger 30 provided at its lower end with cam 34mounted upon the main shaft 36 of the machine. 'This plunger carries at its upper end an eyelet presenting set 38 within 'which is mounted an expansible set 40. This eXpansible set projects above the set 38 and acts as a spindle for the removal of eyelets from a raceway 42 and as a guiding means for insuring thepresentation of the eyelet to the previously punched hole of the work. The lower end of the set 40 'is threaded into an angular piece 44 which projects outwardly through a slot in the side of the plunger 30 and is recip'rocated with the plunger 30.V This angular piece 44 and the set 40 are resiliently supported by means of a spring 46 receivedY within a recess of the plunger and vertical movement of theV eX- panding set is limited by the engagement of the angular piece 44 with an adjustable stop 48 clampedin an inclined slot in the vframe of the machine.

1t will be noted that the expansible set of applicants novel construction is provided Y with a tubular body having an internal bore originally of substantially uniform cross section. Longitudinal slits 50 through the sides of the tubular body and spaced from the ends thereofprovide for the expansion and contraction of the sections formed by said slits. way'of manufacturing the eXpansible set is to spin the sections into contacting relation after the tubular body has been slitted and 4then to temper the body so that the sections are normally contracted but may be eX- pandedwhen desired. At av point intermedr ateV the ends of the sections and upon their' outer surface, there is provided a shoulder 52- one surface of which, in this case the lower surface 54, is formed as an upsetting surface. The construction of the eXpansible set isf preferablyl such that the outer diameter ofthe shoulder 52, when the set is contracted, is no greater than the internal diarneter of the outer end of the tubular body. A die expanding member is then provided which is' arranged within the bore of the tubular body'. This expanding member is preferably constructed as a rod of substantially uniform cross section designed to fit the bore of the tubular body and is provided at its lower end with a cam roll 62 arranged in engagement withl a track in lthe camk 34 and adapted: to be positively actuated from saidl cam. VA suitable slot 64 is provided in'. the: plunger 30 'to allow interconnectionA of theVv cam roll with the rod 60.

'l Tlli'e-upper-'endaefthe expanding member is a cam roll 32l arranged to engage Vwith a cam track inV ar It will bey understood that one plunger 3() carrying the preferablyrounded and when the expanding set 40 is in position to thread the endinost eyelet in the raceway, this rounded head projects slightly above the endv of the set, as shown in F ig. 1, and assists in centeringthe eyelet. intermediate its ends the member 60 is constructedA at 66 to such a size that when this portion is positioned opposite the shoulder 52 .it allows the complete contraction of the movable sections of the die 40. lllhen, however, another portion of the eX- panding member` 60 yis positioned opposite the shoulder 52, as shown in F ig. 2, it will be seen that the movable sections of the die are expanded to make the upsetting surface upon the lower side ofthe shoulder effective. As the parts move into the relation shown by F ig. 2 the upper end of the eX- pansible tool 40 enters the bore' of the tool 18, thereby pushing the lower end of the feeding tool 2O into the tool 18. The tool 40 is thus braced at its upperV end by the tool 18 although the shoulder portions 52 which remain outside the tool 18 are capable of being forced apart as far as the latter will permit. The tool 40v at this time extends through all the layers of the work,and the tool 18 serves as an abutment for the upper layer of the work.

ln the operation of the machine, the inser-tion of the upper end of the die 40into the abutment 18 may be partially' effected before the raceway is moved laterally to withdraw the endmost eyelet therefrom and, by reason of the support of the die 40 at both of its ends, any danger of breakage from such .lateral movement is very greatly reduced.. it will be understood that. in the general operation of the machine, both the upper and lower layers and 72 of the work are punched by the tool carried b v the lever 14 which then is raised and moved laterally to allow the feeding' ringer 2OV to be inserted in the previously punched hole. A late-ral movement of the lever 16, the pres ser foot 12 having been lifted at this time, feeds the work andl brings the hole into alinement with the setting tools 38 and 40. Rotation of the main shaft 36 will have, at this time, also controlled set 38 so that the spindle or set 40 .will have been threaded through theendmost eyelet in the racewaj.' 42 and, as said raceway is being withdrawn, the outer end of the member 40 will have entered the bore of the abutment 18,- as above described. rEhe combined set and spindle' 40 will be normally maintained in extended positionl by the spring 46 until the shoulder 52 has reached the desiredpo-v sition between the layers ZO and 72T of the work, and this position will be positively controlled by the engagement of the angular member 44 with the/stop 48. After thev expanding set` 40.Y lhas been 'positioned lwith.

thel position of thel its shoulder at the proper level between the layers of Work, the die expanding member 60 Will be positively actuated by the cam 34 to bring the die expanding portion thereof opposite the shoulder 52 and thus to cause the expansion of the movable sections of the die. Obviously this expansion affects the sections both above and belon7 the shoulder 52, and the expansion of the upper portions Within the layer of the Work in which the eyelet is not to be set will materially assist in alining the hole in the Work accurately with the set 38 and in insuring perfect Work. Further elevation of the eyelet `presenting set 38 will then take place and will carry an eyelet along the member 40 until the barrel of the eyelet meets the upsetting surface 54 on the expanded sections and is clenched over the lower layer 72 of the work. The parts of the mechanism will then be separated to free the work, and the cycle of operations may be repeated.

It should be noted that the joining together of the corresponding ends of the expansible sections of the set 40, in this case by making them integral with one another,

is of material assistance in reducing brealzf age of these very delicate parts, especially at the time when the upper end of the set is threading the endmost eyelet in the race- Way. The entrance of dirt in the interior of the tubular body of the set Al() will be very largely prevented by the continual presence of the die expanding member 60 therein.

Attention is called to the fact that the novel arrangement described allows the complete control of the eyelet setting mechanism from one side of the work. The expansible set or die, the eyelet presenting set and the die expanding member are all initially located at one side of the Work and are continuously controlled from that side. The feeding member 2O takes no part in the eyelet setting operation with this arrangement.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. In an eyeleting machine, anexpansible upsetting die, and means for presenting said die to one side of the Work, said die comprising expansible normally contracted sections and an upsetting surface formed upon the sections, said sections being joined integrally at that end of the die whichv is presented to the Work.

2. In an eyeleting machine, an expansible upsetting die comprising a spindle having expansible normally contracted sections, and an upsetting surface formed upon these sections, said sections being integral with the spindle at each of their ends.

In an eyelcting machine, an upsetting vided with integral ends and an intermediate portion comprising expansble sections, a shoulder formed in said sections taken collectively, and an upsetting` surface on one side of said shoulder.

6. In an eyeleting machine, an upsetting die comprising a member having normally contracted expansible sections formed to provide a shoulder, one surface of which constitutes an upsetting surface, said sections being extended beyond said shoulder and having means integrally connecting them together.

7. In an eyeleting machine, eyelet setting means comprising an expansible upsetting die having expansible normally contracted sections, means for positioning said die, means Vfor expanding said die, and means for positively controlling said expanding means.

8. In an eyeleting machine, eyelet setting means comprising an expansible upsetting die having expansible normally contracted sections, means for positioning said die, means for expanding said die, and means for positively positioning said expanding means.

9. In an eyeletinsr machine, amovable eyelet presenting set, an expansible upsetting die, means for expanding` said upsetting die, and means for positively controlling said expanding means.

10. In an eyeleting` machine, an expansible upsetting die comprising a tubular body portion having normally contracted expansible sections provided with an upsetting surface, means movable Within said upsetting die for expanding said normally contracted sections, and means for positively controlling said expanding means.

11. In an eyeleting machine, an eyelet set provided With a resiliently expelled spindle, said spindle being provided with an upsetting surface upon a plurality of movable sections constructed and arranged to be maintained normally in contracted condition, the outer ends of said sections being integrally interconnected with one another.

l2. In an eyelet-ing machine, an upsetting die comprising a tubular body provided with a plurality of movable sections constructed and arranged to be maintained normally in contracted condition, said sections being provided with a shoulder forming an up- Y setting surface, and a die-expanding member arranged to remain in the .bore ot said tubular die and provided withv a contracted portion adapted: to be positioned, adjacent to the shoulder upon said movable sections Vto allow the contraction thereof andk to be moved to another position to canse their eX- pansion into operative position.

13; In an eyeleting machine, a Work feeding device arranged upon one side of the Work and comprising two telescopically related members, and eyelet Vpresenting and upsetting means arranged on the opposite side of the Work and comprising an expansible spindle provided with an upsetting surface upon its expansible portion adapted to be located adjacent to the level of the Work and with an extension adapted to enter into telescopic relation with the outer one of said tvvo telescopically related members.

V14. In an eyeleting machine, mechanismV for setting blind or invisible eyelets comprising an eyelet-inserting tool and a spin- Y dle in telescopic relation, thel spindle having an expansible portionconstructed and arranged to extend through all the layers of the Work, and means arranged to expand the spindle While said eXpansible portion occupies all the layers of the vvorlg the tool and spindle being arranged to set an eyelet in one of said layers but outside another one of the layers While said eXpansible portion is expanded and occupying all the layers.

15. In an eyeleting machine, means for supplying eyelets, eyelet-setting mechanism comprising coperative eyelet-engaging' tools including a spindle having an expansible portion constructed and arranged to take an eyelet from said supplying means and then to extend through all the layers oi the Work, and means arranged to expand they spindle While said portion occupies all the layers of the Work and prior to the setting ,ting means comprising eyelet presenting means, an expansible'set and set expanding means, and means for controlling said pre senting means and said expanding means from one side of the Work. Y f

17. In an eyeleting machine, eyelet setting means comprising an expansibleset movable through a portion of the'vvorlr and set expanding means, and means for controlling the operation of said expansible set and said set expanding means from one side of the Work.

18. In an eyeleting machine, eyelet setting means comprising eyelet presenting means, an expansible set movable through a portion of the Work, set expanding means, and means for controlling the operation of said presenting means, expansible set and setexpanding means from one side ofthe Work.

19. In an eyeleting machine, eyelet-setting mechanism comprising a setting tool, a racevvay for supplying eyelets, a spindle associated With said tool to remove an eyelet from the raceway and to maintain the eyelet in registration with said tool, and a tubular tool arranged' to embrace the leading end of the spindle while the latter is threaded through an eyelet in the raceway, said tubular tool being effective to brace the spindle against lateral stress while the raceway and the spindle undergo relative movement to remove the eyelet from the race- Way. Y

In testimony whereof I have signed my name to this specification.

SYLVESTER L. GOOKIN. 

